Argopleurinae Melo and Oliveira

Melo, Bruno F, Ota, Rafaela P, Benine, Ricardo C, Carvalho, Fernando R, Lima, Flavio C T, Mattox, George M T, Souza, Camila S, Faria, Tiago C, Reia, Lais, Roxo, Fabio F, Valdez-Moreno, Martha, Near, Thomas J & Oliveira, Claudio, 2024, Phylogenomics of Characidae, a hyper-diverse Neotropical freshwater fish lineage, with a phylogenetic classification including four families (Teleostei: Characiformes), Zoological Journal of the Linnean Society (Zool. J. Linn. Soc.) 202 (1), pp. 1-37 : 9-10

Argopleurinae Melo and Oliveira , new subfamilp

ZooBank: urn:lsid:zoobank.org:act:D266860E-A816-4B4D-84C3-AC7BB9F88CAC .

Type genus: Argopleura Eigenmann, 1913 .

Included genus: Argopleura .

Definition: The least inclusive crown clade that contains Argopleura chocoensis (Eigenmann, 1913) , Argopleura conoentus (Eigenmann, 1913) , Argopleura diquensis (Eigenmann, 1913) , and Argopleura magdalenensis (Eigenmann, 1913) . This is a minimum-crown-clade definition. See Figure 3 for a reference phylogeny of Argopleurinae. Although Argopleura conoentus and Argopleura diquensis are not sampled in the reference phylogeny, it is assumed that the four species of Argopleura form a monophyletic group (Weitzman and Fink 1985).

Etymology: From the ancient Greek ἀΡγός (ˈɑː͡ɹɡo͡ʊz) meaning shinning or glistening and πλευΡά (plˈoːɹə) meaning rib or side of the body.

Remarks: Weitzman and Menezes (1998) placed Argopleura in Xenurobryconini but recognized that the group was based on limited and ambiguous data. According to Weitzman et al. (2005), a plesiomorphic pouch scale observed in Argopleura comprises what appears to be a terminal lateral-line tube, and thus it looks superficially like a scale derived from the lateral-line

scale series. The authors suggested that new studies should be conducted to better understand this character. Thomaz et al. (2015) and Ferreira et al. (2021) resolved Argopleura as a deepbranching lineage not closely related to other stevardiine genera and classified it as incertae sedis in Stevardiinae . Mirande (2019) placed Argopleura within Stevardiini but did not discuss its relationships with other genera. Our UCE inferred phylogeny resolves Argopleura as the sister-lineage of all Stevardiidae excluding Landoninae, Xenurobryconinae, and Glandulocaudinae ( Fig. 3); thus we formally describe the new subfamily, Argopleurinae, endemic to the Andean region ( Fig. 3).